Gallium Oxide, Gallium Trioxide, 12024-21-4

Gallium Oxide, Gallium Trioxide, 12024-21-4

🧪 Gallium(III) Oxide (Ga₂O₃)

Gallium(III) oxide, commonly called Gallium trioxide, is a rare inorganic compound composed of gallium and oxygen. It is a wide-bandgap semiconductor material with significant applications in electronics, optoelectronics, ceramics, and catalysis.

1️⃣ Chemical Identity

• Chemical Name: Gallium(III) Oxide

• Formula: Ga₂O₃

• Molecular Weight: 187.44 g/mol

• CAS Number: 12024-21-4

• EC Number: 234-953-2

• Appearance: White crystalline powder

• Density: ~6.44 g/cm³

• Melting Point: ~1,725 °C

• Solubility: Insoluble in water; soluble in strong acids

2️⃣ Physical & Chemical Properties

• Semiconductor Properties: Wide bandgap (~4.9 eV), suitable for high-power and high-temperature electronic devices.

• Optical Properties: Transparent to ultraviolet light; used in optoelectronic devices.

• Thermal Stability: High melting point and phase stability.

• Chemical Behavior: Stable in air; reacts with acids to form gallium salts.

3️⃣ Applications

• Electronics:

  • Used in high-voltage transistors, diodes, and power electronics.

  • Thin films for semiconductor devices.

• Optics:

  • UV-transparent materials for optoelectronic applications.

• Ceramics:

  • Additive in high-performance ceramics for improved thermal resistance.

• Catalysis:

  • Catalyst in organic reactions, especially oxidation processes.

• Research:

  • Nanostructures and thin films studied for advanced material science.

4️⃣ Synonyms

• Gallium Oxide

• Gallium(III) Oxide

• Gallium Trioxide

• Ga₂O₃

5️⃣ Safety & Handling

• Toxicity: Low acute toxicity; fine powders may irritate eyes and respiratory tract.

• Precautions: Gloves, goggles, and dust masks recommended.

• Storage: Keep in dry, sealed containers; protect from moisture.

• Waste Disposal: Follow local environmental regulations.

📌 Summary: Gallium(III) Oxide (CAS 12024-21-4) is a wide-bandgap semiconductor with optical transparency, high thermal stability, and catalytic activity, making it indispensable in electronics, optoelectronics, ceramics, and advanced materials research.